1-241513679-C-T

Position:

chr1-241513679-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 4P and 7B. PM1PM5BP4_ModerateBP6BS2

The NM_000143.4(FH):c.302G>A(p.Arg101Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000427 in 1,614,038 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R101P) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000040 ( 0 hom. )

Consequence

FH
NM_000143.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:3

Conservation

PhyloP100: 1.84

Variant links:

Genes affected

FH (HGNC:3700): (fumarate hydratase) The protein encoded by this gene is an enzymatic component of the tricarboxylic acid (TCA) cycle, or Krebs cycle, and catalyzes the formation of L-malate from fumarate. It exists in both a cytosolic form and an N-terminal extended form, differing only in the translation start site used. The N-terminal extended form is targeted to the mitochondrion, where the removal of the extension generates the same form as in the cytoplasm. It is similar to some thermostable class II fumarases and functions as a homotetramer. Mutations in this gene can cause fumarase deficiency and lead to progressive encephalopathy. [provided by RefSeq, Jul 2008]

FH links:

FH (HGNC:):

FH links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 10 uncertain in NM_000143.4

PM5

Other missense variant is known to change same aminoacid residue: Variant chr1-241513679-C-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 16238.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP4

Computational evidence support a benign effect (MetaRNN=0.11823559).

BP6

Variant 1-241513679-C-T is Benign according to our data. Variant chr1-241513679-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 405934.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=3}.

BS2

High AC in GnomAd4 at 10 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FH	NM_000143.4 linkuse as main transcript	c.302G>A	p.Arg101Gln	missense_variant	3/10	ENST00000366560.4	NP_000134.2	P07954-1A0A0S2Z4C3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FH	ENST00000366560.4 linkuse as main transcript	c.302G>A	p.Arg101Gln	missense_variant	3/10	1	NM_000143.4	ENSP00000355518.4		P07954-1

Frequencies

GnomAD3 genomes

AF:

0.0000657

AC:

AN:

152134

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000769

Gnomad SAS

AF:

0.000621

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000119

AC:

AN:

251452

Hom.:

AF XY:

0.000110

AC XY:

AN XY:

135896

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00109

Gnomad SAS exome

AF:

0.000261

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000404

AC:

AN:

1461786

Hom.:

Cov.:

AF XY:

0.0000413

AC XY:

AN XY:

727182

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000756

Gnomad4 SAS exome

AF:

0.000255

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000657

AC:

AN:

152252

Hom.:

Cov.:

AF XY:

0.0000940

AC XY:

AN XY:

74436

show subpopulations

Gnomad4 AFR

AF:

0.0000481

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000771

Gnomad4 SAS

AF:

0.000622

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000123

Hom.:

Bravo

AF:

0.0000680

ExAC

AF:

0.000140

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:4Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Fumarase deficiency

Uncertain:2

Uncertain significance, no assertion criteria provided	clinical testing	Natera, Inc.	Feb 28, 2020	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Baylor Genetics	Nov 26, 2023	- -

not provided

Uncertain:1Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	May 22, 2024	In silico analysis indicates that this missense variant does not alter protein structure/function; Observed in individuals with renal and other cancers (PMID: 26580448, 30548481, 32019277); This variant is associated with the following publications: (PMID: 28125078, 26580448, 30548481, 32019277, 38376408) -
Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 27, 2024	- -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital

Aug 15, 2023

- -

Hereditary leiomyomatosis and renal cell cancer

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Myriad Genetics, Inc.

Aug 14, 2024

This variant is considered likely benign. This variant has been observed at a population frequency that is significantly greater than expected given the associated disease prevalence and penetrance. -

Hereditary cancer-predisposing syndrome

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 04, 2022

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.055

BayesDel_noAF

Uncertain

0.080

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.82

Eigen

Benign

0.075

Eigen_PC

Benign

0.21

FATHMM_MKL

Uncertain

0.83

LIST_S2

Uncertain

0.94

M_CAP

Uncertain

0.16

MetaRNN

Benign

0.12

MetaSVM

Pathogenic

0.89

MutationAssessor

Benign

0.71

PrimateAI

Benign

0.48

PROVEAN

Benign

-1.2

REVEL

Uncertain

0.56

Sift

Benign

0.17

Sift4G

Benign

0.11

Polyphen

0.94

Vest4

0.35

MVP

0.92

MPC

0.33

ClinPred

0.043

GERP RS

5.0

Varity_R

0.56

gMVP

0.76

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over